Controller for soldering iron



FIG. 1 is a perspective view of a controller for soldering iron;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 2 thereof, in which the internal mechanism is omitted.

The broken lines depict portions of the controller for soldering iron in which the design is embodied that are not considered part of the claimed design. 

CLAIM The ornamental design for a controller for soldering iron, as shown and described. 